Zantac and Systemic sclerosis (scleroderma) - a phase IV clinical study of FDA data

Summary:

Systemic sclerosis (scleroderma) is reported as a side effect among people who take Zantac (ranitidine hydrochloride), especially for people who are female, 60+ old, have been taking the drug for 5 - 10 years also take Zyrtec, and have Pulmonary hypertension.

The phase IV clinical study analyzes which people have Systemic sclerosis (scleroderma) when taking Zantac. It is created by eHealthMe based on reports of 432,014 people who have side effects when taking Zantac from the FDA, and is updated regularly.

What is Zantac?

Zantac has active ingredients of ranitidine hydrochloride. It is often used in gastroesophageal reflux disease. eHealthMe is studying from 434,161 Zantac users. Check the latest studies of Zantac.

What is Systemic sclerosis (scleroderma)?

Systemic sclerosis (scleroderma) (an autoimmune or connective tissue disease. it is characterized by thickening of the skin) is found to be associated with 495 drugs and 857 conditions by eHealthMe. Check the latest studies of Systemic sclerosis (scleroderma).

On Jul, 07, 2026

432,014 people reported to have side effects when taking Zantac.
Among them, 29 people (0.01%) have Systemic sclerosis (scleroderma).

Could Zantac cause Systemic sclerosis (scleroderma)?

Among these 29 people:

How long have people been on Zantac when they have Systemic sclerosis (scleroderma)? *

What is the gender of people who have Systemic sclerosis (scleroderma) when taking Zantac? *

female: 92.59 %
male: 7.41 %

What is the age of people who have Systemic sclerosis (scleroderma) when taking Zantac? *

What are other drugs people take besides Zantac? *

What are other side effects people have besides Systemic sclerosis (scleroderma)? *

Diarrhea: 10 people, 34.48%
Appetite - Decreased (decreased appetite occurs when you have a reduced desire to eat): 9 people, 31.03%
Nausea (feeling of having an urge to vomit): 8 people, 27.59%
Headache (pain in head): 7 people, 24.14%
Dyspnea (difficult or laboured breathing): 7 people, 24.14%
Insomnia (sleeplessness): 6 people, 20.69%
Dizziness: 6 people, 20.69%
Nervousness: 6 people, 20.69%
Gait Disturbance: 5 people, 17.24%
Fatigue (feeling of tiredness): 5 people, 17.24%

What are the existing conditions these people have? *

Pulmonary Hypertension (increase in blood pressure in the lung artery): 6 people, 20.69%
Itching: 4 people, 13.79%
Deep Venous Thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis): 3 people, 10.34%
Idiopathic Thrombocytopenic Purpura (bleeding disorder in which the immune system destroys platelets, which are necessary for normal blood clotting): 3 people, 10.34%
Nausea (feeling of having an urge to vomit): 3 people, 10.34%
Irritable Bowel Syndrome: 2 people, 6.90%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 2 people, 6.90%
Drowsiness: 2 people, 6.90%
Idiopathic Pulmonary Fibrosis (chronic lung disease): 2 people, 6.90%
Bone Disorder: 2 people, 6.90%

* Approximation only. Some reports may have incomplete information.

Do you take Zantac and have Systemic sclerosis (scleroderma)?

- Check whether Systemic sclerosis (scleroderma) is associated with a drug or a condition
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously

Related studies:

Effectiveness of, long term effects of, and alternative drugs to Zantac:

Zantac (434,161 reports)

Browse all side effects of Zantac:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Browse all the drugs that are associated with Systemic sclerosis (scleroderma):

Systemic sclerosis (scleroderma) (495 drugs)

Browse all the conditions that are associated with Systemic sclerosis (scleroderma):

Systemic sclerosis (scleroderma) (857 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on ranitidine hydrochloride (the active ingredients of Zantac) and Zantac (the brand name). Other drugs that have the same active ingredients (e.g. generic drugs) are not considered. Dosage of drugs is not considered in the study.

How to use the study?

DO NOT STOP MEDICATIONS without first consulting your doctor. If there are any serious or long term adverse effects discovered in the study, discuss the study with your doctor to ensure that proper medication management will be in place if applicable.

Who is eHealthMe?

With medical big data and proven AI/ML algorithms, eHealthMe provides a platform for everyone to run phase IV clinical trials. We study millions of patients and 5,000 more each day. Results of our real-world drug study have been referenced on 800+ peer-reviewed medical publications, including The Lancet, Mayo Clinic Proceedings, and Nature. Our analysis results are available to researchers, health care professionals, patients (testimonials), and software developers (open API).

WARNING, DISCLAIMER, USE FOR PUBLICATION

WARNING: Please DO NOT STOP MEDICATIONS without first consulting a physician since doing so could be hazardous to your health.

DISCLAIMER: All material available on eHealthMe.com is for informational purposes only, and is not a substitute for medical advice, diagnosis, or treatment provided by a qualified healthcare provider. All information is observation-only. Our phase IV clinical studies alone cannot establish cause-effect relationship. Different individuals may respond to medication in different ways. Every effort has been made to ensure that all information is accurate, up-to-date, and complete, but no guarantee is made to that effect. The use of the eHealthMe site and its content is at your own risk.

If you use this eHealthMe study on publication, please acknowledge it with a citation: study title, URL, accessed date.